In a single point turning operation with a cemented carbide and steel combination having a Taylor exponent of 0.25, if the cutting speed is halved, then tool life will become
- A. half
- B. sixteen times
- C. Two Times
- D. Eight times
Answer: B. sixteen times
Explanation: VT^n = C. V1 T1^0.25 = V2 T2^0.25. V2 = V1/2. (T2/T1)^0.25 = V1/V2 = 2. T2/T1 = 2^(1/0.25) = 2^4 = 16.